Key Luggage Compartment Lock-in Prevention Function does not Operate: Procedure

1. Check that the entry luggage compartment open function operates.
   RESULT
   
   

   Result	Proceed to
   Entry luggage compartment open function operates	A
   Entry luggage compartment open function does not operate	B

B → See step   6 

A: Go to next step 

1. Bring the electrical key transmitter near the indoor electrical key oscillator (for luggage room), and check that the entry luggage compartment lock-in prevention function operates.
   NOTE:

   If the key is brought within 0.2 m (0.6 ft.)of the indoor electrical key oscillator, communication is not possible.

   HINT: 

   • When the electrical key transmitter is brought near the indoor electrical key oscillator (for luggage room), the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
   • If the inspection result is that the operation check is normal, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.
   RESULT
   
   

   Result	Proceed to
   Operation check fails	A
   Operation check is normal	B

B → AFFECTED BY WAVE INTERFERENCE 

A: Go to next step 

1. Diagnostic mode inspection (luggage room inside oscillator)
   Fig 1: Identifying Key Lock-In Prevention's Detection Area & Inspection Point

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Connect the Techstream to the DLC3.
   2. Turn the engine switch on (IG).
   3. Turn the Techstream on.
   4. Enter the following menus: Body Electrical / Smart Access / Smart Communication Check /Overhead + Luggage.
   5. When the electrical key transmitter is held at the same height as the rear bumper upper surface and aligned with the center of the rear of the vehicle, check that the wireless door lock buzzer sounds.

      HINT: 

      If the buzzer sounds, it can be determined that the luggage compartment interior transmitter is operating normally.

      OK

      Wireless door lock buzzer sounds

NG → See step   4 

OK → REPLACE CERTIFICATION ECU 

Fig 2: Identifying S44 Oscillator Connector And L15 ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the S44 oscillator connector.
2. Disconnect the L15 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   S44-1 (CLG6) - L15-15 (CLG7)	Always	Below 1 Ω
   S44-3 (CLGB) - L15-16 (CG7B)	Always	Below 1 Ω
   S44-1 (CLG6) - Body ground	Always	10 kΩ or higher
   S44-3 (CLGB) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the indoor electrical key oscillator with a new one or normally functioning one. Refer to REMOVAL .
2. Check that the entry function operates normally.

   OK

   Operates normally

NG → REPLACE CERTIFICATION ECU 

OK → END (INDOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)